> In Pearson and Shaw's _Life_Extension_, they reported that low levels of
> background radiation lengthened the lifespan of test animals. Ditto
> with low levels of pollution. I think that low levels of poison
> innoculate the body and trigger its immune responses. Too much poison,
> and it's bad. Too little poison, and you have no defenses.
I read once that at one of the early uranium mines in Europe, before
they discovered all the nasty stuff radiation would do to people, the
average miner -- and the average member of a miner's household --
would die of lung cancer at about age 70. Meantime, everyone in
the area who *wasn't* a uranium miner or residing with one,
typically died of a wide variety of diseases at an average age of 45.
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